Air circulator for heating units and the like



April 15, 1941. E. G. SIEGLER Erm.

AIR CIRCULATOR FOR HEATING UNITS AND THE LIKE Fild Dec. l5, 1938 2 Sheets-Sheet l IIII l lrll Ill "unil game ffl

April 15, 1941. E. G. SIEGLER ETAL 2,238,345

AIR CIRCULATOR FOR HEATING UNITS AND THE LIKE Filed Dec. 15, 1958 .2 Sheets-Sheet 2 Patented Apr. 15, 194i AIR CIRJCULATOR FOB HEATING UNITS AND THE LIKF Eugene G. Siegler andBaymond J. Siegler, Marion County, Ill.

Application December 15, 1938, Serial No. 245,880

3 Claims. (Cl. 12B-110) This invention relates( to air clrculators for heating units and the like such as Aunits or devices used for conditioning air for housing habitation purposes, and comprises the application of improved air entraining means to the unit, as a primary purpose of the invention.

Another object is to provide a unit f or conditioning air with improved means for providing a maximum of conditioned air circulation from the unit, into a room or abode where the unit.

may be located.

A further object is to provide the unit with means to entrain the air into the unit and to discharge the air from the unit in the approximate plane of entrainment thereto.

A still further object' is to provide means to entrain the air upwardly through the unit from a low plane. and also to discharge the conditioned air from the unit in a relatively low plane.

Still another object is to provide a unit for conditioning air with an air entraining passageway having its intake end disposed relatively low with respect to the unit and to dispose the passageway over the unit and down to a place of discharge which is also disposed relatively low with respect to the unit.

Other objects and advantages will appear as this description progresses'and by reference to the drawings, in which:

Figure 1 is a vertical longitudinal sectional elevation of a heating unit showing the application of the invention thereto and the elevation being taken approximately on the line i-I of Fig. 2.

Figure 2 is a vertical transverse sectional elevation taken approximately on the line 2-2 of Fig. 4.

Figure 3 isa horizontal sectional elevation taken approximately on the line 3-3 of Fig. 1.

Figure 4 is a horizontal sectional elevation taken approximately on the line 4--4 of Fig. 1.

Referring by numerals to the accompanying drawings, 5 designates a casing which in this instance of disclosure is of rectangular shape in cross section, as shown in Figs. 3 and 4, and the casing at its lower end being provided with cor ner supports 6 for mounting on the iloor cr foundation and the casing-in its side walls and front wall between said supports having arched cut away portions 1 to allow air entralnment into the casing from the bottom thereof.A The casing 5 is provided with a top wall l having an opening 9 and mounted on the top wall l is a cover-I0 supporting a grill plate il.

Disposed within' the casing i and annularly spaced from the vertical walls thereof is a vertically extending combustion chamber I2. said combustion chamber resting on and being se. cured to-'a bottom wall I3 which is secured to and between 'a pair of horizontally extending angle members i4 which are secured at their ends to the front and rear walls Il and lia respectively,'of the casing I. v

`Depending from the bottom wall Il of the combustion chamberi! is a fire pot It having a vent opening I'I in its lower end, and an intermediately disposed pilot ring Il anda top ring II, the fire pot` Il and elements Il and il thereof form'- ing parts of an oil burning device, andl leading to the-lower end of the fire pot I8 is a fuel vapor supply pipe 2l which leads from a float chamber 2i which receives its liquid fluid through the pipe 22 which leads vfrom a supply tank 23.

The supply tank 23 is supported ln the upper compartment 2l of a casing 2l which is disposed against the rear wall Ila of the casing i, as shown in Figs. 1 and 3, and located in the lower compartment 2l of the casing 25 is a blower 21 having its outlet end 2l secured to the rear wall ilaof the casing l and in communication with the horizontal run 2i of a passageway Il which communicates with the lower end of the vertical run Il of said' passageway, the upper end of the vertical run Il communicating with a manifold 82 which is extended horizontally across the top Il of the combustion chamber i2.

As shown, the passageway 3l and the manifold 32 with which it communicates are disposed within the casing l, the vertical run il of the passageway being disposed adjacent one side of the combustion chamber il, and the bottom wall of the manifold l2 is provided by the top I3 lof the combustion chamber i2.

Dependingfroxn the top of the combustion chamber I2 are a series of necks I4 which are in an alining row sidewise of the top Il', and adjacent the rear wall Il of the combustion chamber i2 and depending vfrom each neck is the upper end o! a tube II, each tube at its, lower end being engaged over a respective upwardly extending neck l1, the necks' Il being in an alining row like the necks 34 on the top Il, said necks Il being formed on the top wall 38 of a manifold l! which is supported from the rear wall 3i of the combustion chamber I2.

Obviously, the tubes 3l and the manifold 39 with which they connect are disposed within the combustion chamber I2, and depending from the bottom of the manifold 39 adjacent each end is a tubular extension 40 each being connected within a Joint 4I of a respective discharge tube 42. each discharge tube 42 having a band 43 for providing a horizontally extending discharge end.

44, the discharge ends of said tubes 42 converging towards each other and being connected with an outlet box 45 which is secured to the front wall I of the casing 5 and in communication with the grille plate 46 which is also mounted on said front wall of the casing on the outside thereof.

Leading from the upper end of the combusition chamber I2 in the rear wall 35 of said chamber is a sleeve 41 to which the stack 48 is mounted for discharge of the products of combustion from the chamber I2, and provided in the rear wall 49 of the casing 25 at the bottom thereof, is a pair of spaced openings 50 through which air is entrained and filtered bypassing through respective filtering pads 5I which are removably mounted in the lower compartment 28 in horizontal guides 52 across respective openings 50, as shown in Figs. 1 and 3, when air is entrainedithrough the openings 50 by operation of the blower 21. From an inspection of Fig. l, it is to be noted that the inlet openings 50 and their respective filtering pads which are located at the rear of the unit andi-the outlet box 45 at the front of the unit with which the discharge ends of respective discharge tubes 42 communicate while being disposedat a low level with respect to the unit, are also approximately on the same horizontal plane, and with this arrangement of specific location of inlet and outlet for air entrainment through the unit and discharge therefrom, a maximum of conditioned air displacement is afforded by reason of the low point of entry to the unit and the low point of discharge from the unit owing to the cooler air currents beingV taken from the bottom of a room and discharged after conditioning has been effected, at the bottom of the room or floor level approximately.

The unit is put in `operation by igniting the oil By reason `of the combustion chamber I2 being free of opposing side walls of the casing 5, the cut away portion 1 of the casing will allow air entralnment into the lower end of the casing, and

upon becoming heated will rise and pass through the opening 3 of the top wall 3 of the casing and will be discharged through the grill plate I I which is mounted on the cover I0 of the unit.

While we have described one embodiment of our invention with some particularity, obviously many other embodiments thereof may occur to those skilled in the art to which it appertains. We, therefore, do not limit ourselves to the precise details described, but claim as our invention yallv variations and modifications coming within the scope of the subjoined claims.

What we claim is: 1. A` unit for 'conditioning and circulating air comprising a combustion chamber, a fire pot beneath said chamber, a manifold .disposed adjacent the top of said chamber, a vertically walled air entrainlng passageway in communication with said manifold and disposed on one side of the chamber and having its intake end disposed adjacent the lower end of the unit, asecond manifold disposed within said chamber adjacent the lower end thereof, depending tubes connecting said manifolds, and a discharge pipe leading from each end of the lower manifold and having their outlet ends extending beneath the fire pot adjacent the lower end of the unit.

or gas vapors in the fire pot I6 for subsequently combusting the gases in the chamber I2, and the motor 53 which is connected to the shaft 54 of the blower 2l upon being started will revolve the rotor 55a required speed. Air currents at the approximate floor level of the room in which the unit is located will be drawn through the filtering pads 5I and into the blower and will be discharged therefrom through the outlet end 28 of the blower into the horizontal runl 2S of the passageway 30 and through the vertical run 3l m the horizonm manifold a2 and downwardly let box 45 will be a result, and by taking the cooler air from the lower plane of a room into the conditioning unit and discharging the conditioned air into the room on a low plane, a maximum of air movement in the room is effected, by reason of the discharging conditioned air at the low level with respect to the floor of the room, rising to a greater height with a consequent larger air 2. A unit for conditioning and circulating air comprising a casing having a combustion chamber therein, a manifold disposed adjacent the top of said chamber, a vertically walled air entraining passageway in communication with said manifold and having its intake end disposed adjacent the lower end of the unit and disposed on one side of said chamber, a second manifold disposed within said chamber adjacent the lower end thereof, depending tubes connecting said manifoldsland a pair of spaced discharge pipes leading from the lower manifold and having their outlet ends disposed adjacentihe lower end of a wall of the casing beneath the chamber and in opposite relation to the intake end of the passageway.

3. A unit for conditioning and circulating air comprising a casing having a combustion chamber therein and a fire pot depending from the combustion chamber, a manifold forming the top of said combustion chamber, a lower .disposed manifold in said combustion chamber, tubes disposed between said manifolds and connected at their ends therewith, a discharge pipe leading from respective endsof the lower manifold and having their extending ends inclined beneath said fire pot, a walled air entraining passageway leading from the lower end of said casing to said first mentioned manifold and being disposedon one side of the combustion chamber, and an outlet box positioned in the lower end of a wall of said easing with which the extending ends of said discharge pipes communicate.

EUGENE G. SIEGLER. RAYMOND J. SIEGLER. 

